Home / 142,738.58-213,816.92-67,631.00

Finding the Fourth Proportional to 142,738.58, 213,816.92 and 67,631.00

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Solution

The fourth proportional to 142,738.58, 213,816.92 and 67,631.00 is: 101,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,738.58 : 213,816.92 = 67,631.00 : x
  2. Step 2: Convert to fraction form
    142,738.58/213,816.92 = 67,631.00/x
  3. Step 3: Cross multiply
    142,738.58x = 213,816.92 × 67,631.00
  4. Step 4: Simplify right side
    142,738.58x = 14,460,651,912.00
  5. Step 5: Solve for x
    x = 14,460,651,912.00/142,738.58
  6. Step 6: Final answer
    x = 101,308.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.